baber/WOPTO huggingface dataset:
Patent CA-2023634-A1 (CA)
Title: Process for the removal of catalysts from polyether polyols
Inventor: GUPTA PRAMOD
IPC: C08G18/48
Filed: 1990-08-20
Abstract: A PROCESS FOR THE REMOVAL OF CATALYSTS FROM POLYETHER POLYOLS                  ABSTRACT OF THE DISCLOSURE          The present invention thus relates to a process for removing a basic catalyst from a polyether polyol having a hydroxyl number of from about 4 to 800 comprising (a)  adding from about 0.7 to 10 percent by weight of water, based on said polyether polyol, to an alkaline medium containing said polyether polyol at a temperature of from about 25 to 140°C; (b)  introducing about 1 to 2 times the stoichiometric amount of gaseous carbon dioxide, based on the amount of base in the alkaline reaction medium, at a temperature of from about 75 to 120°C, thereby forming a carbonate salt; (c)  removing said carbonate salt by filtration to give a filtrate containing the polyether polyol; and (d)  neutralizing said filtrate by adding inorganic and/or organic acids.
Patent CA-2026168-A1 (CA)
Title: Segmented sidewall cart
Inventor: KELLEY JAMES O
IPC: A47B88/04
Filed: 1990-09-25
Abstract: A utility cart with front, back, side, top and bottom walls includes a housing having a pair of U-shaped frames spanning the front and back portions of the cart. Each of the U-shaped frames has a pair of upright legs joined by a bottom bight portion. At least two side wall segments form opposite sides of the cart. Each of the side wall segments has at side edges thereof frame-receiving openings shaped to receive legs of the U-shaped frame member. The side wall segments are spaced apart by the in-shaped frames with the legs of the U-shaped frames retained by the frame-receiving openings.      The upper portions of the upright legs of each of the U-shaped frame members are joined together and drawers are slidably mounted to the side wall segments. Integrally molded glides are formed on the inner faces of the side wall segments. The drawers have glide flanges mounted on the sides cooperable with the molded glides slidably mounting the drawers on the glides. Stops are formed an the drawer glides and drawers to retain the drawers in a closed position within the cart and to prevent the drawers from being inadvertently pulled from the cart. Castors are mounted to the bottom of the in-shaped frames at bottom portions thereof to support the cart on wheels. The cart can have a central vertical spine and double-faced walls mounted to the vertical spine to form a vertical partition in the cart for mounting two rows of drawers in side-by-side relationship.
Patent CA-2029012-A1 (CA)
Title: Iridescent film with thermoplastic elastomeric components
IPC: B32B7/023
Filed: 1990-10-31
Abstract: Improvements in multilayer light reflecting film are effected by the use of a thermoplastic elastomer resin in a system in which two or more resinous materials form a plurality of the layers.
Patent CA-2031496-A1 (CA)
Title: Tire splitter
Inventor: JOLLIFFE WILLIAM C
IPC: B26D1/00
Filed: 1990-04-27
Abstract: Apparatus for cutting tires circumferentially employs a horizontal surface (14) on which a tire (12) is placed on its side. A  roller (18) enters the tire to engage the inside surface (92) of the tread portion (76) and push its outer surface (94) against a drive wheel (78). The drive wheel includes a circumferential, projecting cutting blade (74) which penetrates the tread portion of the tire and enters a slot (30) in the roller. When the drive wheel is rotated the tire is also rotated and the blade forms a circumferential cut (96) around the tire.
Patent CA-2031542-A1 (CA)
Title: Low cost digital amplitude regulator
Inventor: KUTZAVITCH WALTER G
IPC: H03G3/20
Filed: 1990-12-05
Abstract: A Low Cost Digital Amplitude Regulator Abstract Apparatus for digital amplitude regulation is disclosed, for use as a volume control or the like, utilizing pulse width modulation to control signal transmission through a two terminal non-linear element, the resistance of which varies with current, e.g., a diode or diode like element. A stream of pulses, the duty cycle of which is variable and digitally controlled, is filtered to produce a quasi-continuously variable reference signal. The value of the reference signal regulates gain by controlling the component of the signal of interest that is actually available for amplification. For low cost implementation in a system already employing a microprocessor or microcomputer the determinative duty cycle can be derived under software control and supplied as all output from a single latchable output pin. In an exemplary implementation, a derived DC component of the variable duty cycle pulses controls the DC output voltage from a voltage divider and is used to regulate the magnitude of a series of fixed magnitude pulses. Additionally, the use of anenergy storing type filter allows the the continuous stream of variable duty cycle pulses to be momentarily interrupted so that a pin used for supplying the pulses can be used for the performance of additional functions without affecting the perceived volume level (Fig. 1).
Patent CA-2033675-A1 (CA)
IPC: B65H16/00
Filed: 1991-01-07
Abstract: A dispenser for a roll of stretch-wrap film enables the operator to apply variable tension to the end of the unwinding film.  The dispenser has a spindle the end of which forms a hub which attaches securely to the core of the film roll, and rotates with the roll as the  film is unwound.   The spindle extends coaxially  from  the  core  of  the  film  roll  and  is  partially surrounded by a flexible hand grip.  Bearings are coaxially mounted on the spindle and interposed beneath part of the hand grip, so that the spindle may rotate freely with respect to the hand grip.          Part of the hand grip engages the spindle without interposition of bearings, so that the application of radial hand pressure results in frictional braking torque on the unwinding film roll, which enables tension to be applied to the end of the film.
Patent CA-2035454-A1 (CA)
IPC: B65D6/08
Filed: 1990-06-29
Abstract: An electronic rack and mounting frame for protecting sensitive electronic equipment against damage caused by impacts and excessive vibration during shipping and handling. The frame has a plurality of vertical and horizontal frame members interconnected by internal splice members engaged within hollow interiors of the frame members at their distal ends to form front and rear frame panels. External splice members connect a plurality of side frame members between the front and rear frame panels to form a rectangular parallelpiped frame structure.
Patent CA-2036273-A1 (CA)
Inventor: FEDAK JOHN F
IPC: G06T19/20
Filed: 1991-02-13
Abstract: Correlation  of  two-dimensional  displayed  points  of  an axonometric  projection  with  corresponding  three-dimensional points of the projected shapes.   A point on a display screen surface is selected and the screen coordinates of the points of the three-dimensional shape are found by converting successive points  of  the  shape  of  two-dimensional  screen equivalents. Comparing the converted coordinates to those of the selected point identifies the shape point corresponding to the selected shape.
Patent CA-2038889-A1 (CA)
Title: Building products with markings thereon
Inventor: BIGNOLD LESLIE J
IPC: E04C2/52
Filed: 1991-03-22
Abstract: BUILDING PRODUCTS WITH MARKINGS THEREON ABSTRACT OF THE DISCLOSURE Building materials such as dimensional lumber and panelling are measured and cut into standard sizes during the construction process. The present invention assists the user by having regularly spaced linear marking thereon. The markings save the user time, in that in many situations he will not need a measuring tape, straight edge or pencil. As there are many standard sizes in the construction industry, the present invention provides markings on the product that conform to these often used measurements.
Patent CA-2038935-A1 (CA)
Title: Biologically active drug polymer derivatives and method for preparing same
Inventor: SARTORE LUCIANA
IPC: A61K31/77
Filed: 1990-07-26
Abstract: New biologically active drug polymer derivatives, namely peptides or protein derivatives, are useful medicaments and are represented by the generic formula: RO-(CH2-CH2O)n-(CO)-NH-X-(CO)-NH-Z, wherein R represents a lower alkyl group, n is an integer comprised between 25 and 250, X when combined with adjacent NH and CO groups represents an amino acid or a dipeptide or tripeptide residue, and Z when combined with the adjacent NH group represents a biologically active peptide or protein or NH or NH2 containing drug residue.
Patent CA-2041120-A1 (CA)
Title: Liquid dispensing system including a discharge assembly providing a positive air flow condition
Inventor: STEINER ROBERT L
IPC: A47K5/12
Filed: 1991-04-24
Abstract: Abstract of the Disclosure A liquid dispenser having a replaceable unvented liquid container with only an outlet opening,  a discharge assembly in liquid communication with the liquid container outlet  opening,  and  including  3 compressible  nipple  for accommodating  a charge  of  liquid,  a  check  valve  for regulating  the  flow  of  liquid  into  the  nipple  and  a semipermeable  filter mounted  in  and  substantially  filling the  inlet  lo the  check  valve,  the  filter  element  being permeable to air to introduce air into the liquid container through  its  outlet  opening,  the  filter element  being impermeable to liquid to prevent back flow of liquid through the air passageway, and having an opening therethrough which is  aligned with the inlet of  the check valve,  defining a liquid passageway through the filter element to the check valve.    The  liquid  dispenser  includes  an  anti-bootleg structure  including  a  plate mounted on the dispenser  and having   an   irregularly   shaped   opening   which   permits installation on the dispenser of only such cartridges that have   a   correspondingly  shaped  neck  portion,   thereby preventing the use of unauthorized cartridges.
Patent CA-2043425-A1 (CA)
Inventor: TANABE AKIO
IPC: G02B6/38
Filed: 1991-05-28
Abstract: ABSTRACT    A forced aligning jig for forcedly aligning a plurality of loose wires.  It is provided with a retaining means for retaining the plurality of loose wires, a guiding means which has one end and the other end and one end is fixed to the retaining means and an aligning means which is slidably supported by the guiding means and forcedly aligns the plurality of loose wires, and the aligning means is provided with an aligning groove for aligning and storing the plurality of loose wires retained by the retaining means and a holding means for holding the plurality of loose wires have been stored in the aligning groove in an aligned state.
Patent CA-2044646-A1 (CA)
Title: Sulfite overbased products and process
Inventor: KARN JACK L
IPC: C10N40/24
Filed: 1991-06-14
Abstract: ABSTRACT Sulfite overbased compositions which are particularly useful in metal-working compositions are obtained.
Patent CA-2046043-A1 (CA)
Title: Retarders for curing phenolic resole resins
Inventor: GERBER ARTHUR H
IPC: C08L61/04
Filed: 1991-07-02
Abstract: There are disclosed methods and compositions for retarding the room temperature gelation and eventual hardening of phenolic resole resins when such resins are mixed with lightburned magnesium oxide or magnesium hydroxide hardening agents with or without an ester functional hardening agent. Retardation of gelation and hardening is achieved by incorporating into said mixture a compound which decreases the solubility of magnesium in said mixture. Additionally, hardening at higher temperatures, thermal curing, as well as refractories, coated abrasives, polymer concrete, and other methods and compositions of this invention are disclosed.
Patent CA-2050149-A1 (CA)
Inventor: KEYS JAMES F
IPC: B60J10/04
Filed: 1991-08-28
Abstract: A glass  run  channel strip  for  providing  an  improved chamfered surface transition from an end flange of a vehicle to a slidable window pane, said glass run strip comprising a core member, a first chamfer forming lip portion extending from the core member in a direction toward the glass run channel and normally positioned at an angle to a window pane, said first lip portion including an outer surface for forming a chamfered surface between the end flange and the window pane, said lip portion being under cut at its attachment to the core member for allowing flexible hinging of the lip portion, wherein a second lip portion extending into the glass run channel, said second lip portion for deflecting the window pane during movement of the window pane relative to the strip away from the end flange to an extend which ensures that the first lip portion will hinge to its normal position for forming the chamfered surface transition.
Patent CA-2050400-A1 (CA)
IPC: H04M15/00
Filed: 1991-08-30
Abstract: This invention relates to a method and apparatus for preparing a billing record for a special service telecommunications call such as a call over a software defined network or a direct service dialing capability call. These calls are characterized by the fact that in order to properly route and bill such calls, remote shared data bases must be consulted to obtain the necessary information, much ofwhich is recorded in the billing record in order to properly charge the customer and to give that customer information about its calls. Special billing information for these special service calls is accumulated in an enhanced billing register capable of storing the special billing information for these special service calls. After timing for two seconds following the receipt of an answer for the call, all the accumulated billing information is transmitted to a separate processor, one of whose functions is the preparation and formatting of billing records. This processor retains the received billing information for the call until a disconnect is received for the call. After the second processor has received the disconnect indication, it prepares a billing record for the call and transfers this billing record either to secondary storage or transmits this information to a remote billing center. Advantageously, by reducing the number of transfers of data between the call control processor and the second processor, a large amount of real time can be saved for the call control processor, thus, substantially increasing the total call handling capacity of the call control processor in a system which handles a large fraction of special service calls.
Patent CA-2052584-A1 (CA)
Title: Strip welding machine
Inventor: NOE OSKAR
IPC: B23K26/26
Filed: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE      A strip welding machine for butt-welding cut surfaces of a strip beginning and a strip end of metal strips to be connected.  The welding seam is manufactured with a laser welding head. In order to obtain a parallel and abutting and gap-free butt joint of the cut surfaces, two separately mounted cutting tools are provided.  Each cutting tool has an upper knife and two lower knives, wherein each upper knife is moved virtually without a gap between the two lower knives.          Consequently, the cut surfaces at the strip end and the cut surfaces at the strip beginning of the metal strips to be connected are manufactured with equal cutting forces, so that dimensional inaccuracies cannot occur.
Patent CA-2054362-A1 (CA)
Inventor: OHZONO KOUHEI
IPC: F16H57/035
Filed: 1991-10-28
Abstract: A belt-type continuously variable transmission in which a drive pulley mounted on an input shaft and a driven pulley mounted on an output shaft are connected by an  endless  belt,  a  forward-  and  backward-movement switchover mechanism for transmitting a driving force from an engine to the drive pulley is disposed adjacent the stationary pulley half of the drive pulley, and a starting clutch for transmitting the rotation of the output shaft to driving wheels is disposed adjacent stationary pulley half of the driven pulley.  This ensures that dead spaces created in a section opposed to both the movable pulley halves which move axially can be utilized as spaces for disposition  of  the  forward- and  backward-movement switchover mechanism and the starting clutch,  thereby enabling the forward- and backward-movement switchover mechanism and the starting clutch to be disposed in a compact layout.
Patent CA-2054547-A1 (CA)
Title: Bloodless catheter
Inventor: BONALDO JEAN M
IPC: A61M39/14
Filed: 1991-10-30
Abstract: ABSTRACT           A medical device which prevents the backflow of fluid therethrough  is particularly useful as a bloodless catheter assembly, that is, prevents the backflow of blood through the catheter by utilization of a self-closing valve carried in a hollow catheter housing to one end of which a catheter is fixed so as to provide a  fluid passage through the catheter and catheter housing.  The fluid passage in the catheter housing is sealed by a self-sealing valve element extending transversely across the passage upstream from the catheter.  A hollow needle is held in the catheter housing downstream of and pointed at the valve  element.    Attachment  of  a  fluid  dispensing  medical appliance to the other catheter housing end forces the valve element downstream onto the needle so as to pierce the valve element and open a fluid passage from the catheter housing upstream of the valve element through the hollow needle to the catheter.    Removal  of  the  medical  appliance  permits  the resiliently biased valve element to move upstream away from the needle, thereby resealing and thus reclosing the fluid passage which extends through the hollow needle.
Patent CA-2059077-A1 (CA)
Inventor: MACAULAY NORMAN
IPC: B42D5/02
Filed: 1992-01-09
Abstract: ABSTRACT OF THE DISCLOSURE    A process for producing a coated substrate, such as paper, by coating a substrate, preferably in a single step, with a formulation of 50 to 95 parts by dry weight of a solids dispersion of particulate silica and 5 to 50 parts by dry weight binder in water to a coating weight of less than 3 0 g/m2 per side of the substrate.  Also, a substrate, such as paper, coated with a composition of particulate silica and binder in a coating weight of less than 3.0 g/m2 per side of the substrate.
Patent CA-2059890-A1 (CA)
Title: Outer cage for one-way sprag clutch
Inventor: RUTKE RUSSELL J
IPC: F16D41/07
Filed: 1992-01-23
Abstract: ABSTRACT OF THE DISCLOSURE A one-way sprag clutch assembly for use in an automatic   transmission   or   similar   application including an inner race  (42),  an outer race  (44) having a pair of annular grooves (63,68) cut in the interior surface (45) thereof, and a clutch assembly (41) having an inner cage member (46), an outer cage member  (53)  and an  intermediate energizing spring (49),  said cage members and spring having generally aligned openings (47,51,55) receiving a plurality of sprags (48) therein.  The outer cage member (53) is formed with an integral side wall (56) perpendicular to the outer annular cage to form, with an end cap (64)   on  the  opposite   end  of   the  assembly, lubrication escape  barriers  for  lubricant  in  the assembly;  said  side  wall  (56)  having  either  an annular  protrusion  or  a  plurality  of  radially extending   axial   positioning   protrusions   (62) received in one of the annular grooves (63) and a snap ring (67) received in the other groove (68) to retain the end cap  (64)  from axial movement,  and drag  lands  (58) formed on  a  plurality  of  spaced crossbars (57) in the cage member extending radially outwardly from the crossbars to terminate in arcuate surfaces (61) engaging the interior surface (45) of the  outer  race   (44)   to  provide  for  inertia resistance for the clutch assembly (41) relative to the races (42,44).
Patent CA-2060253-A1 (CA)
Title: Process for the preparation of secondary monomethylalkyl amines
Inventor: CARR EUGENE R
IPC: B01J23/72
Filed: 1992-01-29
Abstract: Abstract of the Disclosure A process for the preparation of a highly selective amount of secondary monomethylalkyl amine, said process comprising reacting, at elevated temperature and pressure, a hexahydrotriazine compound in the liquid state with hydrogen in the presence of a catalyst material having at least one catalytically active metal, said hexahydrotriazine compound having the formula   wherein R1, R2, and R3 are, independently, straight or branched, saturated or unsaturated, linear or cyclic hydrocarbon groups or straight or branched, saturated or unsaturated, linear or cyclic hydrocarbon groups wherein one or more CH2 groups are replaced by an oxygen atom or a tertiary amine group, provided that any unsaturated group is separated from nitrogen in the hexahydrotriazine ring by at least one carbon atom, any said oxygen atom is enclosed by two carbon groups, and any said oxygen atoms and any said amine groups are separated from other oxygen atoms and other amine groups and from said nitrogen in the hexahydrotriazine ring by at least two carbon atoms.
Patent CA-2063419-A1 (CA)
Title: Process for producing mineral fibers incorporating an alumina-containing residue from a metal melting operation and fibers so produced
Inventor: DUBE GHYSLAIN
IPC: C03C6/10
Filed: 1990-07-26
Abstract: A process for producing mineral fibers and the fibers thus produced are disclosed. The process involves forming a melt comprising an alumina-containing residue from a metal melting operation and one or more mineral raw materials suitable for forming mineral fibers, dividing the melt into streams and cooling the streams to produce the fibers. The residue from the metal melting operation acts as an inexpensive, substantially non-polluting source of alumina which can be used to increase the alumina content of the fibers and thus improve their properties, or which can be used as a replacement for more expensive or less desirable sources of alumina.
Patent CA-2064308-A1 (CA)
IPC: F16H61/06
Filed: 1992-03-27
Abstract: OPEN-LOOP CLUTCH-TO-CLUTCH UPSHIFT CONTROL HAVING CLUTCH OVERLAP REGULATION            Abstract of the Disclosure An open-loop clutch-to-clutch shift control system wherein the overlap between off-going and on-coming clutches in an upshift is regulated in accordance with a confidence term determined through a self-estimation by the control system of its ability to accurately determine the on-coming clutch fill time, and thus, its ability to effect a precise exchange of the off-going and on-coming clutches with little or no overlap.  Under certain conditions, the confidence level is assumed to be low, and the clutches are controlled to result in a relatively high level of overlap.  As the level of confidence improves, the timing of the clutch exchange is adjusted to reduce the level of overlap.  When the level of confidence is high, the exchange of clutches is effected with almost no overlap.
Patent CA-2065851-A1 (CA)
Title: Tv transmission system
Inventor: KEESEN HEINZ-WERNER
IPC: H04N7/00
Filed: 1990-09-01
Abstract: (57) Abstract In a TV transmission system which operates on the "letter box" principle for transmitting the 16:9 aspect ratio, every fourth line is removed and transmitted in a compatible form as additional information at the upper and lower edges of the picture with the 4:3 formal. This process, however, leads to signal jumps and distorted movements and to reduced vertical definition in the 4:3 receiver and to greater sensitivity to noise in the 16:9 receiver. These drawbacks are largely overcome, and in particular the static definition of the 4:3 receiver is maintained, by using a vertical DCT or length eight and an inverse DCT of length six in the encoder or the transmitter and vice versa in the decoder of the 16:9 receiver.